What is a possible cause of runt Ethernet frames when a switch is being used?

A possible cause of runt Ethernet frames when a switch is being used is a mismatch in network configurations, such as different duplex settings between devices. This can lead to collisions and truncated frames. Additionally, hardware issues like faulty network interface cards (NICs) or cabling problems can also contribute to the generation of runt frames, as they can disrupt the normal transmission of data packets.